Renowned YouTuber MrBossFTW reveals the best Ill-Gotten Gains supercar among Progen T20 and Pegassi Osiris in his latest gameplay video, as the GTA community is abuzz with discussions pertaining to the ultimate supercar in GTA Online, following the release of new Ill-Gotten Gains DLC update (part 2).

MrBossFTW lists out the pros and cons of each of these two supercars, before delivering the final verdict suggesting which one he thinks is the best of the lot.

The Progen T20 is the costlier option as it is priced at $2.2m in contrast to the Pegassi Osiris, which is relatively cheaper at $1.95m.

In other words, it means the Progen T20 is the most expensive supercar in the game, followed by Osiris, and these two can be purchased in GTA Online via Legendary Motorsport.

In a nutshell, the Osiris is barely $250, 000 cheaper than the Progen T20, while both the supercars support loads of customisation options including the bumpers, fenders, hood and side-skirts, as well as up to four exhaust options.

There is no spoiler option on the Progen T20, but you can adjust its roof-top and it resembles the real-life supercar, McLaren PU1.

On the other hand, the Pegassi Osiris is more tuneable with a lot more customisable features than the T20.

Moving on to the special features found in each of these two supercars, MrBossFTW points out that the Osiris is the only supercar in GTA 5 with gull-wing doors, apart from the classic sports car Benefactor Sterling GT.

In contrast, the signature feature of Progen T20 is its movable spoiler, which can be lifted up as you accelerate or pushed down when you decelerate. In addition, the spoiler can be titled back and forth, whenever you hit the brakes on the car.

It is ascertained that the movable spoiler could actually give a performance boost, especially considering the significance of body dynamics and air movement that invariably influence slip-streaming during races.

Coming to top speeds, the Progen T20 is undoubtedly the fastest car in GTA Online with twin V8 engines, followed by the Pegassi Osiris powered by V12 engine. The latter has a top speed of 230mph and an acceleration of 0-60mph in 3.2 seconds, while the former is negligibly slower at 220mph with a faster acceleration potential (0-60mph in less than 3 seconds).

Given the advantage with the spoiler customisation options on the Osiris, it definitely holds an edge with an improved traction capability over the ProGen T20, which packs a fixed spoiler without any customisable option.

Given their respective pros and cons, what do you think would be the best supercar between Pegassi Osiris and the Progen T20? Please leave your comments below.